Booking failure

Please can someone assit with my query as I have endless troubles with your call centre. I called your call centre to have a date changed to my recent booking baywest . On the app I accidentally booked to 9/9/2017 instead of 8/9/2017. The first person I spoke to was terribly rude and did not want to assist and displayed bad customer service to me even laughed when I explained my query and got upset with me with I told him a date change was done before. I asked to speak to his manager and he transferred me to one Gloria marothi who as a team leader or manager also displayed extremely bad and rude customer service I was then transferred to a supervisor named tebatso mo***eng who again didn't want to assist and gave endless hassels and told me that the process changed in October 2016 but my colleagues were able to change their booking dates in 2017 when they made the same error. I was told to email my bank statements copy of my card and who knows what else to you guys to refund me but this takes 14 days. Why would I have to go through this process if a date change is requested? And why do I need to wait 14 days for my money to be refunded if you didn't wait 30seconds to take this off of my account??? I am appalled by your lack of customer services and urgency to help your clients. This is not what I would expect from a big name brand such as yourself. I would expect to receive better service from your managers as they are at a higher level than staff but this was not the case I am really disappointed. I am really upset and frustrated as the request is really simple. My booking ref is WHCB3Q4. Contact me urgently if you wish to do so if not please can you branc manager or higher management contact me discuss this further.. cell no ********** 665